Huge sunspot may launch solar flares toward Earth in the next two weeks

One of the biggest sunspots in years is emerging on the sun today. Hours ago it produced a C-class solar flare and a minor radio blackout over the Indian Ocean.…

A New Cold Record set at International Falls: Should we be surprised?

News has come from the Duluth office of the National Weather Service that both International Falls & Hibbing broke their records for low temperatures on the morning of September 17.…

Nile floods – is the sun guilty?

Now I do understand that one flood does not a cycle make, but the news immediately made me think of the NASA report of 2007 that found a link between…

Solar Cycle 25 Has Started

Guest post by David Archibald The heliospheric current sheet has flattened meaning that Solar Cycle 24 is over and we are now in Solar Cycle 25. Figure 1: Heliospheric current…

Solar Update December 2019

David Archibald We are well into the Solar Cycle 24/25 minimum but 24 may not have ended yet. A solar cycle isn’t over until the heliospheric current sheet has flattened.…

25 for 25

Guest post by David Archibald Back on March 7, 2006, the National Science Foundation issued a press release predicting that the amplitude of Solar Cycle 24 would be “30 to…

Potential role of low solar activity this winter as solar minimum deepens and the wide-ranging impacts of increasing cosmic rays

Guest post by Paul Dorian *Potential role of low solar activity this winter as solar minimum deepens and the wide-ranging impacts of increasing cosmic rays* The sun is blank again…

Solar Update July 2019

Guest Post by David Archibald The two major items of interest are the likely month of minimum in the Solar Cycle 24 – 25 transition and the likely amplitude of…